BMW X3 F25 xDrive 35dX N57Z Automatic Gearbox GA8HP70X 7636114 WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order. BMW X3 F25 xDrive 35dX N57Z Automatic Gearbox GA8HP70X is a factory-original, used transmission from the Automatic gearboxes segment, designed to work with the xDrive diesel engine system. The design of this gearbox ensures smooth gear shifting, high operating refinement, and stable torque transfer in demanding road conditions.

Specifications and technical data

• SKU: 7636114
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7636114
• Substitutable numbers: 7636114, 24007636114, 9487567, 24009487567
• Fuel type: Diesel
• Gearbox type: Automatic
• Part type: Automatic Transmission
• Category: Automatic Transmission

Purpose and compatibility

The offered automatic gearbox has been designed specifically for the BMW X3 F25 model in the xDrive 35dX version with the N57Z unit, which ensures proper fitment with the vehicle's drivetrain and electronics. Its use in a vehicle with a diesel engine guarantees the correct gear ratio characteristics, adapted to the high torque typical of diesel units. The transmission belongs to the modern family of BMW automatic gearboxes, which means optimized cooperation with traction control systems, all-wheel drive, and driving modes. As a result, drivetrain consistency is maintained, and throttle response remains predictable and repeatable.

Construction and operating characteristics

The GA8HP70X automatic gearbox was built with dynamic yet comfortable driving in mind. The transmission architecture allows for fast and smooth gear changes, reducing jerks and unwanted delays. The gearbox control system works with the engine electronics, allowing for precise management of gear ratios depending on load, speed, and the selected driving mode. In practice, this means that the gearbox effectively utilizes the potential of the diesel unit, keeping the RPM in the optimal range. For the user, this translates into stable acceleration, predictable downshifts, and a comfortable ride both in the city and on the highway.

Application in the xDrive drivetrain

The presented transmission is adapted to work with the xDrive all-wheel-drive system, which requires proper tuning for torque distribution between the axles. Thanks to this, the drivetrain maintains proper traction, and the gearbox works consistently with stability control and traction control systems. Such a combination is particularly important in vehicles with higher power and weight, where precise torque management has a direct impact on safety and component durability. Using a dedicated gearbox for this model configuration minimizes the risk of problems resulting from incorrect component selection.

Benefits of choosing a used BMW gearbox

Choosing a used BMW automatic gearbox is a solution that allows for significantly lower repair costs compared to purchasing a new component, while maintaining the original design and fitment. You receive a part originating from the same technological line as factory-installed transmissions, which promotes seamless integration with the vehicle's existing installation. To better understand how to safely and consciously approach the purchase of such components, it is worth reading an expert guide discussing facts and myths about the secondary market, selection procedures based on identification numbers, and cost ratios – this is described in detail in the article Why it is worth buying used gearboxes and engines – facts instead of myths.

Support for drivetrain selection and expansion

When selecting this gearbox, it is crucial to verify compatibility with the specific vehicle configuration, including the engine version and drive type. Manufacturer markings and interchangeable numbers are helpful here, allowing for precise matching of the component to a given BMW X3 F25 unit. If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as torque converters, control elements, or additional transmission components, check the available parts in the BMW automatic gearboxes category.